<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
<script type="text/javascript">
    person = new Object();
    person.firstname = "Bill";
    person.lastname = "Gates";
    person.age = 56;
    person.eyecolor = "blue";
    document.write(person.firstname+"is" +person.age+"years old")
</script>

</body>
</html>